Apparently we need a miniature train.
Niabi train nearing its last tour -QCOnline (Look quick, their articles don't stay free)
According to the article, Niabi Zoo's miniature railroad took in $157,122 in 2005 alone. The article states that they are looking into to buying a new locomotive, because theirs is starting to show its age. It seems a brand new miniature locomotive costs about $130,000.
So, throw some miniature tracks down snaking through Vander Veer, Duck Creek Park, along the riverfront, or 14th and Gaines if you want more of a thrill ride, and charge $1.50 a ticket like Niabi does. The locomotive will be paid off in a year, and from then on we're raking in money like robber barons.
Clearly I'm in the wrong business.